COMPOSITION OF COFFEES. 
The chemical composition of roasted coffees. 
903 
3. 40 
oe rg 
. 2 s So? puss. = a2 | : 
Description) = = Zz S A = SPB ee = Remarks. 
i ss es J = / S| = ow toi | = 
La] 2 s = PES RA ai PR k= an = 
pos fe z = a S |au8 | Se Son 
A ~ Oo — arn os }m | -A 
| | | 
Per ct.| Per et.| Per et. | Perct. Perct.| Per ct.| Perct. | Perct.\ Per et. 
Not given -| .36,) 8.30) 44.96) 5.17) 1.06} 12.03] 26.28 | 11.84 |...---- Hassall.? 
Ba: ie Poe oe a OST) eT) ee eae | Sese!) asa ls Blyth. To dry 
| | | snbstance.3 
Lee 3.19 | 15.63 24.27 = 1.38 12.05 38. 41 gE yl |e Blyth. To orig- 
| | inal substance.” 
Mocha _ -63 | 13.59] 48.62) 4.56) .82) 11.23 ]........ .43 | 1.24 James Bell. 
East India.| 1.13} 13.41| 47.42| 4.88| 1.05] 13.13 |..-..... 41| 138]- Do. 
ease oS” 1.92} 16.51 18. 42 4.91 1. 44 17.18 38. 61 ee (ene es W. Kisech.® 
1.15 | 14.48 | 19.89 | 4.75] 1.24 | 13. 98 | 45.09 | .66]....... Kénig’s averages. 
| 
1 Reported as cane sugar. 
2 Hassall, op cit., 146. 
3 Foods, their composition and analysis, A. W. Blyth, 346. 
4 Konig, op cit., 1002. 
5 Loc. cit. 
Composition of some pure coffees. 
[A. Smetham, Analyst, 1882, 73.1 
| A. 2. 3 4, a: 6 cfs 
| W aber 3 oe ot per cent 3. 89 3.49 1.84 | 3.54 | Ls a 59 | | ee ee pe ae 
EG el = do 2E 11.40 10.13 | 10.63 | 1G) 132 10-75 10. 80 | 
Gtivions 225%: 5. Wael 63a a | ee) Se 26°" 2790 |L_. Vaie see 
Wea ox 7s Pees £0 bk do..| 4.63] 4.29] 4.40/ 4.08] 419| 4.25| 4.20 
| Soluble ash....-...... do. aot) 2.3.50 3. 60 3.14 3.25 3.35 
~ No. 1, Ceylon coffee; No. 2, Costa Rica; No. 3, 
Ceylon; No. 4, East Indian coffee; 
Nos. 6 and 7, best and purest kinds of coffee bought from a wholesale dealer. 
No. 1, best Jamaica; No. 2. best green Mocha; No. 3, pearl Ceylon; No. 4, washed Rio; No. 
Analyses of various coffees. 
[O. Levesie, Arch. Pharm. (3) & 294.] 
No. 5, Jamaica; 
1. ze 3 4. 5. | 6. 7 
Caffeine ......-.. percent.) 1.43) .6£) 153] 1.14] 118] .88/ 1.01 
ct eter eae a eg do..| 14.76 | 21.79 | 14.87] 15.95] 21.12| 18.80] 17.00 | 
VES Sates at et eee do..| 25.30, 22.60| 23.80] 27.40] 20.60] 25.80 | 24.40 
| Caffeicand tannicacid.do..| 22.70 | 23.10 | 20.90| 20.90) 21.10) 20.70) 19.50 | 
| Cellulose Seems eee do..| 33.80 29.90) 36.00 32.50 33.00| 31.90 36.40. 
6 ee ee do.| 3.80; 410) 4.00] 4.50, 4.90 ae O a 
piace ro ee ee bes. oes FEARS er eecs ees | 
—— ME S. -2 do... 31 | 42 Ts) 51 | 46 . 60 | eee | 
| 
Rica; No. 6, Malabar; No. 7, East Indian cottee. 
5, Costa 
